Electric Regulating Valve

The intelligent electric control valve is a balanced electric control valve. By adopting a smart integrated electric actuator, it accepts analog 4-20 mA or 1-5 V•DC standard signal

Valve Body Parameters

Nominal Size (DN)

20

25

32

40

50

65

80

100

125

150

200

250

300

Valve Seat Diameter (dn)

20

25

32

40

50

65

80

100

125

150

200

250

300

Rated Flow Coefficient (KV)

Single Seat

6.9

11

17.6

27.5

44

69

110

176

275

440

630

875

1250

Sleeve

6.3

10

16

25

40

63

100

160

250

360

570

850

1180

Allowable Pressure (MPa)

Single Seat

3.8

3.2

3.0

2.0

1.8

1.5

1.4

1.0

0,7

0.6

0.5

0.3

0.1

Sleeve

6.4

6.4

5.2

5.2

4.6

4.6

3.7

3.7

3.5

3.1

3.1

2.6

2.2

Nominal Pressure (MPa)

1.6, 2.5, 4.0, 6.4, 10.0, 16.0, 25.0

Rated travel (mm)

16

25

40

60

100

Bonnet

Standard Form (-17~+250℃), High-temperature Form (+250~+450℃), Low-temperature Form (-40~-196℃), Bellows Seal Form(-40~+350℃)

Bonnet type

Bolt Compression

Sealing gasket

V-type PTFE Filler, V-type Flexible Graphite Filler

Body Material

Carbon Steel(WCB, WCC), Stainless Steel(CF8, CF8M, CF3, CF3M, Duplex Stainless Steel 2520)


Trim Parameters

Structure

Single seat plunger type spool, Sleeve type spool

Flow Characteristics

Linear, Equal Percentage

Trim Material

Stainless Steel (304, 316, 316L)

The matching actuator parameters are as follows:


Actuator Models

Imported (Rotork, Siemens, AUMA, Westbosch) and other customer-designated brands

Main Technical Parameters

Power Supply Voltage: AC 220V, AC 380V; Special order DC 24V; (others)

Input signal: 4-20mA or 1-5V•DC, Output signal: 4-20mA•DC; Special custom RS485 communication interface

Protection Level: Quite IP65, Explosion-proof Mark: ExdIIBT4 (optional BT6, CT4, CT6), Hand Function: Handle

Ambient Temperature: -25~+70℃, Ambient Temperature: ≤95%


Performance Index


Item

Index Value

Basic Error %

±1.0

Return Error %

1.0

Dead zone %

1.0

Error Between Start Point and End Point %

Turn On

Start Point ±2.5

End Point ±1.0

Start Point ±2.5

End Point ±1.0

Turn Off

Start Point

±1.0

End Point

±1.0

Rated travel difference %

≤1.0

Leakage L/h

0.01%×Valve Rated Capacity

Adjustable Range R

30:1


Product Overview

The series of electric regulating valve is combined with IQseries linear travel electric actuator and regulating valve.

The electric actuator outputs the axial thrust, which makes the valve core move accordingly, so as to adjust the process parameters such as pressure, flow, temperature and liquid level. The valve body has compact structure, small pressure drop loss, large flow, wide adjustable range, high accuracy of flow characteristic curve, and meets the IEC534-1-1976 standard.The valve core guide area is large, the shock resistance is good, the seat leakage is in accordance with ANSIB16.106 standard.

The actuator is the propulsion unit, which is powered by power and output thrust.The valve part is the adjusting part, contacting with the medium directly, regulating medium flow.

The ZRLP type single valve adopts a sealing surface, so the leakage volume is small, but the unbalanced thrust on the stem is large, which is suitable for the small pressure difference. ZRLN type double-seat valve with two sealing structure, so the leak quantity is big, but their role in the imbalance thrust on the valve stem is lesser, allow the pressure difference is bigger, compared with the sleeve valve, the valve is suitable for the medium viscosity larger occasions.This series of valves are widely used in chemical industry, petroleum, metallurgy, power plant and other industrial sectors.

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